grunt
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Michael Deal
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10
README.md
10
README.md
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@ -1,6 +1,6 @@
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CODE EXAMPLES (from the repo)
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* ./demo-Basic.html is the most basic implementation as seen here:
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* ./demo-Basic.html is the most basic implementation.
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* ./demo-MIDIPlayer.html shows how to parse MIDI files, and interact with the data stream.
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* ./demo-WhitneyMusicBox.html is a audio/visual experiment by Jim Bumgardner
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@ -15,14 +15,8 @@ DEMOS
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-------------
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SOUNDFONT GENERATORS (*not* required to get started!)
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* Ruby
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* Shell
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-------------
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* <a href="./js/MIDI.loadPlugin.js">MIDI.loadPlugin.js</a>: Decides which framework is best to use, and sends request.
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<pre>
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// interface to download soundfont, then execute callback;
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MIDI.loadPlugin(callback);
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140
build/MIDI.js
140
build/MIDI.js
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@ -510,7 +510,7 @@ MIDI.audioDetect = function(callback) {
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})();
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/*
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-----------------------------------------------------------
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MIDI.loadPlugin : 0.1 : 11/20/2012
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MIDI.loadPlugin : 0.1.2 : 01/18/2012
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-----------------------------------------------------------
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https://github.com/mudcube/MIDI.js
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-----------------------------------------------------------
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@ -526,6 +526,9 @@ if (typeof (MIDI.Soundfont) === "undefined") MIDI.Soundfont = {};
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(function() { "use strict";
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// Turn on to get "onprogress" event. XHR will not work from file://
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var USE_XHR = false;
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MIDI.loadPlugin = function(conf) {
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if (typeof(conf) === "function") conf = { callback: conf };
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/// Get the instrument name.
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@ -533,7 +536,6 @@ MIDI.loadPlugin = function(conf) {
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if (typeof(instruments) !== "object") instruments = [ instruments ];
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instruments.map(function(data) {
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if (typeof(data) === "number") data = MIDI.GeneralMIDI.byId[data];
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MIDI.Soundfont[data] = true;
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return data;
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});
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///
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@ -594,15 +596,26 @@ connect.audiotag = function(filetype, instruments, callback) {
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var queue = createQueue({
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items: instruments,
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getNext: function(instrumentId) {
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DOMLoader.sendRequest({
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url: MIDI.soundfontUrl + instrumentId + "-" + filetype + ".js",
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onprogress: getPercent,
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onload: function (response) {
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MIDI.Soundfont[instrumentId] = JSON.parse(response.responseText);
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if (MIDI.loader) MIDI.loader.update(null, "Downloading", 100);
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queue.getNext();
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}
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});
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if (USE_XHR) {
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DOMLoader.sendRequest({
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url: MIDI.soundfontUrl + instrumentId + "-" + filetype + ".js",
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onprogress: getPercent,
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onload: function (response) {
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MIDI.Soundfont[instrumentId] = JSON.parse(response.responseText);
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if (MIDI.loader) MIDI.loader.update(null, "Downloading", 100);
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queue.getNext();
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}
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});
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} else {
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DOMLoader.script.add({
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src: MIDI.soundfontUrl + instrumentId + "-" + filetype + ".js",
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verify: instrumentId,
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callback: function() {
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if (MIDI.loader) MIDI.loader.update(null, "Downloading...", 100);
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queue.getNext();
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}
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});
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}
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},
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onComplete: function() {
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MIDI.AudioTag.connect(callback);
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@ -616,15 +629,26 @@ connect.webaudio = function(filetype, instruments, callback) {
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var queue = createQueue({
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items: instruments,
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getNext: function(instrumentId) {
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DOMLoader.sendRequest({
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url: MIDI.soundfontUrl + instrumentId + "-" + filetype + ".js",
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onprogress: getPercent,
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onload: function(response) {
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MIDI.Soundfont[instrumentId] = JSON.parse(response.responseText);
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if (MIDI.loader) MIDI.loader.update(null, "Downloading...", 100);
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queue.getNext();
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}
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});
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if (USE_XHR) {
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DOMLoader.sendRequest({
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url: MIDI.soundfontUrl + instrumentId + "-" + filetype + ".js",
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onprogress: getPercent,
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onload: function(response) {
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MIDI.Soundfont[instrumentId] = JSON.parse(response.responseText);
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if (MIDI.loader) MIDI.loader.update(null, "Downloading...", 100);
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queue.getNext();
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}
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});
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} else {
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DOMLoader.script.add({
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src: MIDI.soundfontUrl + instrumentId + "-" + filetype + ".js",
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verify: "MIDI.Soundfont." + instrumentId,
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callback: function() {
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if (MIDI.loader) MIDI.loader.update(null, "Downloading...", 100);
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queue.getNext();
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}
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});
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}
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},
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onComplete: function() {
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MIDI.WebAudioAPI.connect(callback);
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@ -880,7 +904,7 @@ var startAudio = function (currentTime, fromCache) {
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//
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for (var n = 0; n < length && messages < 100; n++) {
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queuedTime += data[n][1];
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if (queuedTime <= currentTime) {
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if (queuedTime < currentTime) {
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offset = queuedTime;
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continue;
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}
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@ -905,7 +929,7 @@ var startAudio = function (currentTime, fromCache) {
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eventQueue.push({
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event: event,
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source: MIDI.noteOff(channel, event.noteNumber, currentTime / 1000 + ctx.currentTime),
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interval: scheduleTracking(channel, note, queuedTime, offset - 10, 128)
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interval: scheduleTracking(channel, note, queuedTime, offset, 128)
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});
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break;
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default:
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@ -1041,10 +1065,9 @@ if (window.AudioContext || window.webkitAudioContext) (function () {
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source.connect(ctx.destination);
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///
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var gainNode = ctx.createGainNode();
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var value = -0.5 + (velocity / 100) * 2;
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var minus = (1 - masterVolume) * 2;
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var value = (velocity / 100) * masterVolume * 2 - 1;
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gainNode.connect(ctx.destination);
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gainNode.gain.value = Math.max(-1, value - minus);
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gainNode.gain.value = Math.max(-1, value);
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source.connect(gainNode);
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source.noteOn(delay || 0);
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return source;
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@ -1984,73 +2007,6 @@ if (typeof(MusicTheory.Synesthesia) === "undefined") MusicTheory.Synesthesia = {
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};
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})(MusicTheory.Synesthesia);
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// http://ntt.cc/2008/01/19/base64-encoder-decoder-with-javascript.html
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// window.atob and window.btoa
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(function (window) {
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var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
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window.btoa || (window.btoa = function encode64(input) {
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input = escape(input);
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var output = "";
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var chr1, chr2, chr3 = "";
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var enc1, enc2, enc3, enc4 = "";
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var i = 0;
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do {
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chr1 = input.charCodeAt(i++);
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chr2 = input.charCodeAt(i++);
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chr3 = input.charCodeAt(i++);
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enc1 = chr1 >> 2;
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enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
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enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
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enc4 = chr3 & 63;
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if (isNaN(chr2)) {
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enc3 = enc4 = 64;
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} else if (isNaN(chr3)) {
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enc4 = 64;
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}
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output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + keyStr.charAt(enc3) + keyStr.charAt(enc4);
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chr1 = chr2 = chr3 = "";
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enc1 = enc2 = enc3 = enc4 = "";
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} while (i < input.length);
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return output;
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});
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window.atob || (window.atob = function(input) {
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var output = "";
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var chr1, chr2, chr3 = "";
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var enc1, enc2, enc3, enc4 = "";
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var i = 0;
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// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
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var base64test = /[^A-Za-z0-9\+\/\=]/g;
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if (base64test.exec(input)) {
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alert("There were invalid base64 characters in the input text.\n" + "Valid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='\n" + "Expect errors in decoding.");
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}
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input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
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do {
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enc1 = keyStr.indexOf(input.charAt(i++));
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enc2 = keyStr.indexOf(input.charAt(i++));
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enc3 = keyStr.indexOf(input.charAt(i++));
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enc4 = keyStr.indexOf(input.charAt(i++));
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chr1 = (enc1 << 2) | (enc2 >> 4);
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chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
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chr3 = ((enc3 & 3) << 6) | enc4;
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output = output + String.fromCharCode(chr1);
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if (enc3 != 64) {
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output = output + String.fromCharCode(chr2);
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}
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if (enc4 != 64) {
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output = output + String.fromCharCode(chr3);
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}
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chr1 = chr2 = chr3 = "";
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enc1 = enc2 = enc3 = enc4 = "";
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} while (i < input.length);
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return unescape(output);
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});
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}(this));
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/*
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----------------------------------------------------
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Loader.js : 0.4.2 : 2012/11/09
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2
build/MIDI.min.js
vendored
2
build/MIDI.min.js
vendored
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